Hao (毫). Conversion Chart

This converter features contemporary units of length. There is also a special converter for historical units of length you might want to visit for ancient, medieval and other old units that are no longer used.
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Your value (hao (毫)):
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hao (毫) to kilometer (km)
hao (毫) to meter (m)
hao (毫) to decimeter (dm)
hao (毫) to centimeter (cm)
hao (毫) to millimeter (mm)
hao (毫) to micrometre (micron)
hao (毫) to nanometer (nm)
hao (毫) to ångström
Units: kilometer (km)  / meter (m)  / decimeter (dm)  / centimeter (cm)  / millimeter (mm)  / micrometre (micron)  / nanometer (nm)  / ångström
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The American System (US Customary Units) and British Imperial Measures

American weights and measures are based on units used in Britain prior to 1826, when imperial system was officially established. Until 1960-1963 American and British units of length were different in 2 parts per million. In the middle of 20th century it started causing problems and the governments of the two countries agreed to refine the measures to exactly match. Since then Great Britain and the United States were using the same measures of length. In the U.S. the old standard of foot was retained with the name US survey foot.

From 1995 the UK adopted metric units for general use. The only imperial measures of length that can be officially used now are miles, yards, feet and inches for road traffic signs.

hao (毫) to league
hao (毫) to mile (mi)
hao (毫) to land
hao (毫) to furlong
hao (毫) to bolt
hao (毫) to chain
hao (毫) to pole
hao (毫) to rod (rd)
hao (毫) to perch
hao (毫) to yard (yd)
hao (毫) to feet and inches (x'y")
hao (毫) to span
hao (毫) to hand
hao (毫) to inch (in)
hao (毫) to line
hao (毫) to mil
hao (毫) to microinch
Units: league  / mile (mi)  / land  / furlong  / bolt  / chain  / pole  / rod (rd)  / perch  / yard (yd)  / foot (ft)  / feet and inches (x'y")  / span  / hand  / inch (in)  / line  / mil  / microinch
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British Imperial Measure before 1963

The first English official measurement standards were defined in 15th century. British system of units, known as imperial units, was established in 1824. The British Weights and Meausurements Act of 1824 repealed all existing British measures legislation and redefined existing units. The 1963 Weights and Measures Act standartized the international measures.
hao (毫) to league
hao (毫) to mile (mi)
hao (毫) to land
hao (毫) to skein
hao (毫) to bolt
hao (毫) to shackle
hao (毫) to furlong
hao (毫) to chain
hao (毫) to rope
hao (毫) to pole
hao (毫) to goad
hao (毫) to ell
hao (毫) to yard (yd)
hao (毫) to pace
hao (毫) to cubit (cu)
hao (毫) to foot (ft)
hao (毫) to span (sp)
hao (毫) to nail
hao (毫) to shaftment
hao (毫) to hand (hd)
hao (毫) to palm (plm)
hao (毫) to inch (in)
hao (毫) to finger
hao (毫) to digit
hao (毫) to barleycorn
hao (毫) to poppyseed
hao (毫) to line
hao (毫) to button
hao (毫) to caliber
hao (毫) to thou (th)
hao (毫) to mil
Units: league  / mile (mi)  / land  / skein  / bolt  / shackle  / furlong  / chain  / rope  / pole  / goad  / ell  / yard (yd)  / pace  / cubit (cu)  / foot (ft)  / span (sp)  / nail  / shaftment  / hand (hd)  / palm (plm)  / inch (in)  / finger  / digit  / barleycorn  / poppyseed  / line  / button  / caliber  / thou (th)  / mil
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US Surveyors' Measure

hao (毫) to furlong
hao (毫) to Ramsden's (engineers') chain (ch)
hao (毫) to Gunter's (surveyors') chain (ch)
hao (毫) to Gurley's chain (ch)
hao (毫) to Gunter's (surveyors') pole
hao (毫) to Gunter's (surveyors') yard
hao (毫) to Gunter's (surveyors') foot (ft)
Units: furlong  / Ramsden's (engineers') chain (ch)  / Gunter's (surveyors') chain (ch)  / Gurley's chain (ch)  / Gunter's (surveyors') pole  / Gunter's (surveyors') yard  / Ramsden's (engineers') link  / Gunter's (surveyors') link  / Gurley's link  / Gunter's (surveyors') foot (ft)
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International Nautical Measure

The international nautical mile was defined by the First International Extraordinary Hydrographic Conference, Monaco in 1929. This is the only definition in widespread current use, and is the one accepted by the International Bureau of Weights and Measures. Before 1929 different countries had different definitions, and the Soviet Union, the United Kingdom and the United States did not immediately accept the international value.
hao (毫) to nautical league (naut.leag)
hao (毫) to nautical mile (naut.mi)
hao (毫) to cable length (cbl)
hao (毫) to fathom (fath)
Units: nautical league (naut.leag)  / nautical mile (naut.mi)  / cable length (cbl)  / fathom (fath)
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US Nautical Measure

These measures were abandoned in favor of the international nautical measures in 1954.
hao (毫) to US nautical mile
hao (毫) to US fathom (fath)
Units: US nautical mile  / US cable length  / US fathom (fath)
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British (Imperial) Nautical Measure

These measures were abandoned in favor of the international nautical measures in 1970.
hao (毫) to Admiralty mile
hao (毫) to Admiralty cable length
Units: Admiralty mile  / Admiralty cable length
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Spanish Customary Units Still In Use Today

These units are still actively used in some countries of Latin America. Their values vary from country to country. You can find more old Spanish customary units on our historical lengths page.
hao (毫) to cuadra of Argentina
hao (毫) to cuadra of Bolivia
hao (毫) to cuadra of Chile
hao (毫) to cuadra of Colombia
hao (毫) to cuadra of Ecuador
hao (毫) to cuadra of Nicaragua
hao (毫) to cuadra of Paraguay
hao (毫) to cuadra of Uruguay
hao (毫) to vara of Argentina
hao (毫) to vara of Brazil
hao (毫) to vara of Chile
hao (毫) to vara of Colombia
hao (毫) to vara of Costa Rica
hao (毫) to vara of Cuba
hao (毫) to vara of Dominican Republic
hao (毫) to vara of Ecuador
hao (毫) to vara of El Salvador
hao (毫) to vara of Guatemala
hao (毫) to vara of Honduras
hao (毫) to vara of Mexico
hao (毫) to vara of Nicaragua
hao (毫) to vara of Panama
hao (毫) to vara of Paraguay
hao (毫) to vara of Peru (peruana)
hao (毫) to vara of Peru (española)
hao (毫) to vara of Uruguay
hao (毫) to vara of São Tomé and Principe
hao (毫) to vara of Venezuela
Units: cuadra of Argentina  / cuadra of Bolivia  / cuadra of Chile  / cuadra of Colombia  / cuadra of Ecuador  / cuadra of Nicaragua  / cuadra of Paraguay  / cuadra of Uruguay  / vara of Argentina  / vara of Brazil  / vara of Chile  / vara of Colombia  / vara of Costa Rica  / vara of Cuba  / vara of Dominican Republic  / vara of Ecuador  / vara of El Salvador  / vara of Guatemala  / vara of Honduras  / vara of Mexico  / vara of Nicaragua  / vara of Panama  / vara of Paraguay  / vara of Peru (peruana)  / vara of Peru (española)  / vara of Uruguay  / vara of São Tomé and Principe  / vara of Venezuela
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hao (毫) to ri (里)
hao (毫) to cho (町)
hao (毫) to jo (丈)
hao (毫) to hiro (尋)
hao (毫) to ken (間)
hao (毫) to shaku (尺)
hao (毫) to sun (寸)
hao (毫) to bu (分)
hao (毫) to rin (厘)
hao (毫) to mo (毛, 毫)
Units: ri (里)  / cho (町)  / jo (丈)  / hiro (尋)  / ken (間)  / shaku (尺)  / sun (寸)  / bu (分)  / rin (厘)  / mo (毛, 毫)
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Chinese units of 1930

hao (毫) to li (市里)
hao (毫) to yin (引)
hao (毫) to zhang (市丈)
hao (毫) to chi (市尺)
hao (毫) to cun (市寸)
hao (毫) to fen (市分)
hao (毫) to li (釐 or 厘)
hao (毫) to si (丝)
hao (毫) to hu (忽)
Units: li (市里)  / yin (引)  / zhang (市丈)  / chi (市尺)  / cun (市寸)  / fen (市分)  / li (釐 or 厘)  /  / si (丝)  / hu (忽)
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Chinese units of 1915

hao (毫) to li (里)
hao (毫) to yin (引)
hao (毫) to zhang (丈)
hao (毫) to bu (步)
hao (毫) to chi (尺)
hao (毫) to cun (寸)
hao (毫) to fen (分)
hao (毫) to li (釐 or 厘)
hao (毫) to hao (毫)
hao (毫) to si (丝)
hao (毫) to hu (忽)
Units: li (里)  / yin (引)  / zhang (丈)  / bu (步)  / chi (尺)  / cun (寸)  / fen (分)  / li (釐 or 厘)  / hao (毫)  / si (丝)  / hu (忽)
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Hong Kong units

hao (毫) to cek (尺)
hao (毫) to tsun (寸)
hao (毫) to fan (分)
Units: cek (尺)  / tsun (寸)  / fan (分)
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Thai units

Some of these units are still in use even though metric system was formally established in 1923. Before the metrication the old units were standartied to exact metric values.
hao (毫) to yot (โยชน์, league)
hao (毫) to sen (เส้น, rope)
hao (毫) to wa (วา, fathom)
hao (毫) to sok (ศอก, cubit)
hao (毫) to khuep (คืบ, span)
hao (毫) to nio (นิ้ว, finger)
hao (毫) to krabiat (กระเบียด, quarter of a finger)
Units: yot (โยชน์, league)  / sen (เส้น, rope)  / wa (วา, fathom)  / sok (ศอก, cubit)  / khuep (คืบ, span)  / nio (นิ้ว, finger)  / krabiat (กระเบียด, quarter of a finger)
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hao (毫) to dioptre (diopter)
Units: dioptre (diopter)
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Geographical (German)

hao (毫) to geographical mile
Units: geographical mile
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Computer Equipment

A rack unit, U or RU is a unit of measure that describes the height of equipment designed to mount in a 19-inch rack or a 23-inch rack. The 19-inch (482.6 mm) or 23-inch (584.2 mm) dimension refers to the width of the equipment mounting frame in the rack including the frame; the width of the equipment that can be mounted inside the rack is less.
hao (毫) to rack unit (U)
hao (毫) to horizontal pitch (HP)
Units: rack unit (U)  / horizontal pitch (HP)
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Typographical (British and U.S. - ATA system)

hao (毫) to pica
hao (毫) to pica [PostScript]
hao (毫) to point (pt)
hao (毫) to point [PostScript] (pt)
hao (毫) to pixel (px)
hao (毫) to twip
Units: pica  / pica [PostScript]  / point (pt)  / point [PostScript] (pt)  / pixel (px)  / twip
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Typographical (Europe - Didot system)

hao (毫) to cicero
hao (毫) to point (pt)
Units: cicero  / point (pt)
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European footwear unit

hao (毫) to Paris point
Units: Paris point
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hao (毫) to red shift (z)
hao (毫) to parsec (pc)
hao (毫) to light year
hao (毫) to astronomical unit (au)
hao (毫) to light minute
hao (毫) to light second
Units: red shift (z)  / parsec (pc)  / light year  / astronomical unit (au)  / light minute  / light second
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Grace Hopper's units of distance

Grace Hopper is famous for her nanoseconds visual aid. People used to ask her why satellite communication took so long. She started handing out pieces of wire that were just under one foot long (11.80 inches) — the distance that light travels in one nanosecond. She also passed out packets of pepper, calling the individual grains of ground pepper picoseconds. She also used these aids to illustrate why computers had to be small to be fast.
hao (毫) to light microsecond
hao (毫) to light nanosecond
hao (毫) to light picosecond
Units: light microsecond  / light nanosecond  / light picosecond
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Natural units

In physics, natural units are physical units of measurement based only on universal physical constants. The origin of their definition comes only from properties of nature and not from any human construct.
hao (毫) to Planck length (L)
Units: Planck length (L)

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